Windscreen Wiper

Hi am new to the forum. I have a freelander Kalahari 2003 and need some advice.
Driving along today in pouring rain and my drivers side windscreen wiper just stopped. The passenger wiper still works. Made sure there was nothing blocking it ....the wiper can be swiped up the window by hand but feels loose. Could it just be a case of tightening a nut or am I looking at a huge bill

Your vdu or whatever it's called is gonna break soon.
That's all I know about freelanders.
Try posting in the freelanders forum instead of in the intro forum.
Hello and welcome from me